/******************************************************************************
*
* Copyright (c) 2015 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
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* notice, this list of conditions, and the following disclaimer.
*
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* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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*
* OpenGLFog.h
*
*****************************************************************************/
//2015/06/10 Updated
#pragma once
#include <oz++/Exception.h>
#include <oz++/opengl/OpenGLObject.h>
#include <math.h>
namespace OZ {
class OpenGLFog :public OpenGLObject {
private:
public:
OpenGLFog()
:OpenGLObject(NULL)
{
glEnable(GL_FOG);
}
~OpenGLFog()
{
glDisable(GL_FOG);
}
//mode = GL_LINEARr, AGL_EXP, AGL_EXP2
void mode(GLfloat mode = GL_LINEAR)
{
glFogi(GL_FOG_MODE, mode);
}
void density(GLfloat value)
{
glFogf(GL_FOG_DENSITY, value);
}
//Specify start position for GL_LINEAR mode
void start(GLfloat value)
{
glFogf(GL_FOG_START, value);
}
//Specify end position for GL_LINEAR mode
void end(GLfloat value)
{
glFogf(GL_FOG_END, value);
}
//Specify color index
void index(GLfloat value)
{
glFogf(GL_FOG_INDEX, value);
}
//Specify color index
void color(GLfloat* value)
{
assert(value);
glFogfv(GL_FOG_COLOR, value);
}
void color(GLfloat r, GLfloat g, GLfloat b, GLfloat a)
{
GLfloat value[] = {r, g, b, a};
glFogfv(GL_FOG_COLOR, value);
}
void color(GLint* value)
{
assert(value);
glFogiv(GL_FOG_COLOR, value);
}
};
}